mirror of
https://github.com/saymrwulf/uhd.git
synced 2026-05-16 21:10:10 +00:00
967be2a4e8
Applying formatting changes to all .cpp and .hpp files in the following
directories:
```
find host/examples/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/tests/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/lib/usrp/dboard/neon/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/lib/usrp/dboard/magnesium/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/lib/usrp/device3/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/lib/usrp/mpmd/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/lib/usrp/x300/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find host/utils/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
find mpm/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
```
Also formatted host/include/, except Cpp03 was used as a the language
standard instead of Cpp11.
```
sed -i 's/ Cpp11/ Cpp03/g' .clang-format
find host/include/ -iname *.hpp -o -iname *.cpp | \
xargs clang-format -i -style=file
```
Formatting style was designated by the .clang-format file.
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
//
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// Copyright 2010-2012,2014 Ettus Research LLC
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// Copyright 2018 Ettus Research, a National Instruments Company
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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//
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#include <cmath>
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#include <complex>
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#include <stdexcept>
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#include <string>
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#include <vector>
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static const size_t wave_table_len = 8192;
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class wave_table_class
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{
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public:
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wave_table_class(const std::string& wave_type, const float ampl)
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: _wave_table(wave_table_len)
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{
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// compute real wave table with 1.0 amplitude
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std::vector<float> real_wave_table(wave_table_len);
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if (wave_type == "CONST") {
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for (size_t i = 0; i < wave_table_len; i++)
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real_wave_table[i] = 1.0;
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} else if (wave_type == "SQUARE") {
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for (size_t i = 0; i < wave_table_len; i++)
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real_wave_table[i] = (i < wave_table_len / 2) ? 0.0 : 1.0;
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} else if (wave_type == "RAMP") {
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for (size_t i = 0; i < wave_table_len; i++)
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real_wave_table[i] = 2.0 * i / (wave_table_len - 1) - 1.0;
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} else if (wave_type == "SINE") {
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static const double tau = 2 * std::acos(-1.0);
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for (size_t i = 0; i < wave_table_len; i++)
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real_wave_table[i] = std::sin((tau * i) / wave_table_len);
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} else
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throw std::runtime_error("unknown waveform type: " + wave_type);
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// compute i and q pairs with 90% offset and scale to amplitude
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for (size_t i = 0; i < wave_table_len; i++) {
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const size_t q = (i + (3 * wave_table_len) / 4) % wave_table_len;
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_wave_table[i] =
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std::complex<float>(ampl * real_wave_table[i], ampl * real_wave_table[q]);
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}
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}
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inline std::complex<float> operator()(const size_t index) const
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{
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return _wave_table[index % wave_table_len];
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}
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private:
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std::vector<std::complex<float>> _wave_table;
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};
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